This is the original Game Boy Advance RPG, Mario & Luigi: Superstar Saga. It's a turn-based adventure where Mario and Luigi team up to recover Princess Peach's stolen voice. The story is genuinely funny, and the sprite-based animation is full of charm. It's absolutely worth playing for its unique personality.
The combat requires good timing, not just menu selections. You actively jump to dodge enemy attacks and press buttons in sync to power up your Bros. Moves. This makes every fight feel interactive. The brotherly teamwork is the core of the entire adventure. Give it a shot.